Connected: An Internet Encyclopedia
RFC 822 - 4. MESSAGE SPECIFICATION

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### 4. MESSAGE SPECIFICATION

4.1. SYNTAX
4.2. FORWARDING
4.3. TRACE FIELDS

4.3.1. RETURN-PATH
4.3.2. RECEIVED

4.4. ORIGINATOR FIELDS

4.4.1. FROM / RESENT-FROM
4.4.2. SENDER / RESENT-SENDER
4.4.3. REPLY-TO / RESENT-REPLY-TO
4.4.4. AUTOMATIC USE OF FROM / SENDER / REPLY-TO

4.5. RECEIVER FIELDS
4.6. REFERENCE FIELDS
4.7. OTHER FIELDS

Next: 4.1. SYNTAX

Connected: An Internet Encyclopedia
RFC 822 - 4. MESSAGE SPECIFICATION